Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJZ5
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: SEAT BELT: SEAT BELT WARNING SYSTEM: PROBLEM SYMPTOMS TABLE; 2016 - 2020 MY Sienna [12/2015 -        ]

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Seat Belt Warning System

Symptom

Suspected Area

Link

Driver side seat belt warning light does not operate

Airbag system

2016 - 2020 MY Sienna [12/2015 -        ]; SEAT BELT: SEAT BELT WARNING SYSTEM: Driver Side Seat Belt Warning Light does not Operate

Front seat inner belt assembly LH

2016 - 2020 MY Sienna [12/2015 -        ]; SEAT BELT: SEAT BELT WARNING SYSTEM: Front Passenger Side Seat Belt Warning Light Malfunction

Center airbag sensor assembly

-

Combination meter assembly

-

Main body ECU (Multiplex network body ECU)

-

Front passenger side seat belt warning light malfunction

Airbag system

XX-XX

Occupant classification system

-

Front seat inner belt assembly RH

-

Center airbag sensor assembly

-

Occupant detection ECU

-

Combination meter assembly

-

Seat belt warning light does not operate for driver and front passenger seats

Combination meter assembly

-

Seat belt warning buzzer does not operate

Check customized settings using the Techstream

XX-XX

Combination meter assembly

-